PrusaSlicer 1.41.0-beta

Slic3r Prusa Edition Slic3r Prusa Edition 1.41.0-beta

Summary:

This is a beta release, fixing some regression issues and improving the multi material wipe tower handling. For the complete change log, please see the Slic3r PE 1.41.0-alpha2 ↗ and Slic3r PE 1.41.0-alpha3 ↗ release logs.

Multi-material improvements:

• To produce accurate print time estimates for the Prusa i3 MK3 MMU2, we have added parameters for the filament load / unload times spent at the external Multi-Material Upgrade 2.0 unit. These times are added to the simulated print time for all "single extruder multi material" printers. Also a new Prusa3D specific "M702 C" code is interpreted by the print time estimator as a command to unload the last filament at the end of print.
• Added a minimum initial purge amount filament parameter. After a tool change, the exact position of the newly loaded filament inside the nozzle may not be known, and the filament pressure is likely not yet stable. Before purging the print head into an infill or a sacrificial object, Slic3r will now prime some amount of material into the wipe tower to produce successive infill or sacrificial object extrusions reliably.
• The wipe tower point of origin was moved from the center to the left front corner, so that the wipe tower will grow and shrink at the rear side only. In earlier Slic3r versions, the wipe tower shrank and expanded symmetrically, which made it difficult for the user to place the wipe tower close to printed objects to minimize travel time and nozzle leakage.
• Improved wipe tower preview on Plater: As the final size of the wipe tower is not known before slicing, the wipe tower is now shown with the rear side augmented with a thin zigzag line indicating in which direction the wipe tower may grow or shrink. After slicing, the wipe tower preview on Plater is updated with the real dimensions.

This release contains the following improvements:

• Parameter names were added to parameter tooltips, so one knows how the parameter may be used inside a conditional G-code.

This release contains the following bug fixes:

• Fixed crashes in the new arrange function #1074, #1084, #1085, #1088, #1094.
• Fixed an update issue, which lead to not updating the time estimate after an object was duplicated #1081.
• Fixed a regression issue, where after rotation of an object along an X or Y axis the object was not correctly aligned with the print bed surface #1093.
• The M204 code format was synchronized with the upstream Marlin. The Prusa i3 MK3 and MK2.5 firmware was updated to understand the "new" M204 format, and our MK2 printer profiles were updated to produce the legacy M204 line format with the custom start G-code #1086, #1089.
• The new "time to end of print" M73 code may now be suppressed for the firmware flavors and versions, which do not support it yet #1071.